| """ | |
| Test that the type of arguments to C++ template classes that have variadic | |
| parameters can be enumerated. | |
| """ | |
| import lldb | |
| from lldbsuite.test.decorators import * | |
| from lldbsuite.test.lldbtest import * | |
| from lldbsuite.test import lldbutil | |
| class TemplatePackArgsTestCase(TestBase): | |
| def test_template_argument_pack(self): | |
| self.build() | |
| (target, _, thread, _) = lldbutil.run_to_source_breakpoint( | |
| self, "breakpoint here", lldb.SBFileSpec("main.cpp"), exe_name="a.out" | |
| ) | |
| frame = thread.GetSelectedFrame() | |
| empty_pack = frame.FindVariable("emptyPack") | |
| self.assertTrue( | |
| empty_pack.IsValid(), "make sure we find the emptyPack variable" | |
| ) | |
| only_pack = frame.FindVariable("onlyPack") | |
| self.assertTrue(only_pack.IsValid(), "make sure we find the onlyPack variable") | |
| self.assertEqual(only_pack.GetType().GetNumberOfTemplateArguments(), 4) | |
| self.assertEqual( | |
| only_pack.GetType().GetTemplateArgumentType(0).GetName(), "int" | |
| ) | |
| self.assertEqual( | |
| only_pack.GetType().GetTemplateArgumentType(1).GetName(), "char" | |
| ) | |
| self.assertEqual( | |
| only_pack.GetType().GetTemplateArgumentType(2).GetName(), "double" | |
| ) | |
| nested_template = only_pack.GetType().GetTemplateArgumentType(3) | |
| self.assertEqual(nested_template.GetName(), "D<int, int, bool>") | |
| self.assertEqual(nested_template.GetNumberOfTemplateArguments(), 3) | |
| self.assertEqual(nested_template.GetTemplateArgumentType(0).GetName(), "int") | |
| self.assertEqual(nested_template.GetTemplateArgumentType(1).GetName(), "int") | |
| self.assertEqual(nested_template.GetTemplateArgumentType(2).GetName(), "bool") | |
| my_c = frame.FindVariable("myC") | |
| self.assertTrue(my_c.IsValid(), "make sure we find the myC variable") | |
| # Out of bounds index. | |
| self.assertFalse(my_c.GetType().GetTemplateArgumentValue(target, 3)) | |
| # Out of bounds index. | |
| template_param_value = my_c.GetType().GetTemplateArgumentValue(target, 1) | |
| self.assertEqual(template_param_value.GetTypeName(), "int") | |
| self.assertEqual(template_param_value.GetValueAsSigned(), 16) | |
| template_param_value = my_c.GetType().GetTemplateArgumentValue(target, 2) | |
| self.assertEqual(template_param_value.GetTypeName(), "int") | |
| self.assertEqual(template_param_value.GetValueAsSigned(), 32) |